Granted Patent
Utility
US 5,193,897 · App. 07/817,749
Combined pen and light pointer apparatus
Inventor:
Keith D. Halsey
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Jan 7, 1992
Inventor
Keith D. Halsey
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.